A disorder that affects a select few. It is cause by a lack of protein, found only in Filet Mignon, in the brain. Those who suffer from this disorder can see a decrease in productivity if a suitable amount of Filet Mignon is not ingested.

Side effects may include a level of grumpiness, shortened temper, and boisterousness.

The office ordered lunch for all employees, but failed to account for John's Filet Mignonitis. The office suffered greatly for this over-site.